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WGU C170 Data Management - Applications
Questions and Answers (100% Correct
Answers) Already Graded A+
domainAns: In data modeling, the construct used to organize and
describe an attribute's set of possible values
superkeyAns: An attribute or attributes that uniquely identify each entity
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in a table. Any composite key with this is also this.
candidate keyAns: A minimal superkey; that is, a key that does not
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contain a subset of attributes that is itself a superkey
entity integrityAns: The property of a relational table that guarantees
each entity has a unique value in a primary key and that the key has no
null values
referential integrityAns: A condition by which a dependent table's
foreign key must have either a null entry or a matching entry in the
related table
data dictionaryAns: A DBMS component that stores metadata. It
contains the data definition & their characteristics and relationships; may
also include data external to the DBMS
system catalogAns: A detailed system data dictionary that describes all
objects in a database
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homonymAns: The use of the same name to label different attributes,
much like similar-sounding words with different meanings
synonymAns: The use of different names to identify the same object,
such as an entity, an attribute, or a relationship. These should generally
be avoided.
not null and uniqueAns: Any candidate key must have these two
constraints enforced
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cardinalityAns: Term for how many instances of one object are related to
instances of another object (maximum)
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modalityAns: Term for whether an instance of a specific entity is optional
or mandatory in a relationship (minimum)
connectivityAns: Term for the classification of the relationship between
entities. Classifications include 1:1, 1:M, and M:N
CREATE SCHEMA AUTHORIZATIONAns: SQL command to create a
database schema
DEFAULTAns: SQL option to define a default value for a column (when no
value is given)
CHECKAns: SQL command to validate data in an attribute, used during
table column creation
CREATE TABLE ASAns: SQL command to create a new table based on a
query in the user's database schema
1
WGU C170 Data Management - Applications
Questions and Answers (100% Correct
Answers) Already Graded A+
domainAns: In data modeling, the construct used to organize and
describe an attribute's set of possible values
superkeyAns: An attribute or attributes that uniquely identify each entity
© 2026 Assignment Expert
in a table. Any composite key with this is also this.
candidate keyAns: A minimal superkey; that is, a key that does not
Guru01 - Stuvia
contain a subset of attributes that is itself a superkey
entity integrityAns: The property of a relational table that guarantees
each entity has a unique value in a primary key and that the key has no
null values
referential integrityAns: A condition by which a dependent table's
foreign key must have either a null entry or a matching entry in the
related table
data dictionaryAns: A DBMS component that stores metadata. It
contains the data definition & their characteristics and relationships; may
also include data external to the DBMS
system catalogAns: A detailed system data dictionary that describes all
objects in a database
, For Expert help and assignment handling,
2
homonymAns: The use of the same name to label different attributes,
much like similar-sounding words with different meanings
synonymAns: The use of different names to identify the same object,
such as an entity, an attribute, or a relationship. These should generally
be avoided.
not null and uniqueAns: Any candidate key must have these two
constraints enforced
© 2026 Assignment Expert
cardinalityAns: Term for how many instances of one object are related to
instances of another object (maximum)
Guru01 - Stuvia
modalityAns: Term for whether an instance of a specific entity is optional
or mandatory in a relationship (minimum)
connectivityAns: Term for the classification of the relationship between
entities. Classifications include 1:1, 1:M, and M:N
CREATE SCHEMA AUTHORIZATIONAns: SQL command to create a
database schema
DEFAULTAns: SQL option to define a default value for a column (when no
value is given)
CHECKAns: SQL command to validate data in an attribute, used during
table column creation
CREATE TABLE ASAns: SQL command to create a new table based on a
query in the user's database schema
